Wi-Fi Technology Evolution
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11
54
600
6900 9600
Wi-Fi 1 (1997-1998)
Wi-Fi 2 (1999-2002)
Wi-Fi 3 (2003-2008)
Wi-Fi 4 (2009-2012)
Wi-Fi 5 (2013-2018)
Wi-Fi 6 (2019 - )
Wi-Fi Generation
Wi-Fi Technology Evolution (Mbps)
Wi-Fi technology has seen significant evolution over the years. From 2 Mbps in 1998 to almost 10 Gbpsin today’s Wi-Fi (an almost 5000-fold increase in the data rate). Evolution to higher data rates is driven by its increasing popularity.
More traffic crosses the Wi-Fi network
https://www.hindawi.com/journals/wcmc/2018/2608419/
Wi-Fi Technology Evolution
2016 2017 2018 2019 2020 2021
300
250
200
150
100
50
0
Fixed/Wi-Fi from Wi-Fi-Only Devices (18% CAGR)
Fixed/Wi-Fi from Mobile Devices (48% CAGR)
Fixed/Wired (16% CAGR)
Mobile (16% CAGR)
17.4%
19.8%
25.7%
19.8%
The trend toward mobility carries over into the realm of fixed networks as well, in that an increasing portion of traffic will originate from portable or mobile devices.
By 2021, wired networks will account for 37 percent of IP traffic, and Wi-Fi and mobile networks will account for 63 percent of IP traffic.
In 2016, wired networks accounted for the majority of IP traffic, at 51 percent;
Wi-Fi accounted for 41 percent; and mobile or cellular networks accounted for 7.5 percent of total
Wi-Fi 6: A Quick Score Sheet
Previous IEEE 802.11 Amendments IEEE 802.11ax Benefits
Objectives Increase the per-link peakthroughput
Increase the average per user throughput in dense environment
Improving user experience
Scenarios Single application for a single client in indoor scenarios
Dense deployment environmentswith a mix of clients/AP and traffic types including outdoor situations
Increased number of stations (users) and APs located close to each other
KPIs/Metrics Peak rate driven•Link throughput•Aggregate throughput
Metrics reflecting user experience• Average per STA throughput• Area Throughput
Up to 4x improvement in the per user throughput
What Does Wi-Fi 6 Bring (VS Wi-Fi 5)?
High Throughput Low LatencyLarge Capacity
• Up to 9.6 Gbps • 4 x higher bandwidth
Low Power Consumption
1024-QAM8x8 MU-MIMO
User 1User 2User 3User 4
Frequency
Time
UL/DL OFDMAUL/DL MU-MIMO
• 1024 access users (per AP)
• 4 x higher concurrent capacity
OFDMASpatial Reuse
• Uplink ordered scheduling, latency reduced to 20 ms
• Average latency lowered by 50%
TWT20MHz-Only
• Target time wakeup (TWT) mechanism
• Terminal power consumption reduced by 30%
Wi-Fi 6: Why It Is Better?Wi-Fi 6 Wi-Fi 5 Wi-Fi 4
Band 2.4, 5, and 6 GHz 5 GHz 2.4 and 5 GHz
Make use of the large spectrum available in the 6 GHz band
Waveform OFDMA OFDM OFDM Achieve multiplexing gain
Channel Width 20, 40, 80, 160 MHz 20, 40, 80, 160 MHz 20, 40 MHz Same channel width as in Wi-Fi 5
Number of Antennas 8 8 4 Same as in Wi-Fi 5
Advanced Power Save
Target Wake up Time (TWT)
No No Efficient support of devices with power constraints
Aggregate Data Rate 9.6 Gbps 6.9 Gbps 600 Mbps Modest rate increase compared to Wi-Fi 5
User Experience 4x improvement ? ? Focus is on user experience and per user throughput.
20 MHz-only operation
Yes No Yes Allows support of IoT applications and eventual replacement of Wi-Fi 4
Spatial Reuse Yes No No Efficient use of available spectrum
MU MIMO DL MU MIMO and Triggered UL MIMO
DL MU MIMO No Access point schedules users based on their traffic requirements, e.g. buffer size and delay requirements.
Outdoor Improved support No No Improved outdoor performance for open stadiums and hot spots.
QAM 1024 QAM 256 QAM 64 QAM Improved throughput by packing more signals in the same space.
6GHz: The Need for More Spectrum• Recent spectrum needs studies indicate that by 2020 the Wi-Fi industry will require an additional 600-800
MHz of spectrum to support the current growth curve; 1.2-1.6 GHz by 2025
• The U-NII-2b band we expected to open is now off the table
• 160 MHz in the middle of the 5 GHz band is no longer possible
?
6GHz: The New Spectrum• Regulators are discussing making the band from 6 Ghz to 7.125 GHz
available for unlicensed operation• More 160 MHz channels will become available• Clear the way to specify wider channels, e.g. 320 MHz channels• 802.11ax project scope was modified to include the 6 GHz band (up to 7.125 GHz).
However, there are no plans to specify 320 MHz channels for 11ax
ApplicationsHigh density areasE-learning4k/8k videoVR/ARTelepresenceCADIoTResearch Medical imagingNext generation apps
Benefits• Improve student & staff experience
• Capex & Opex savings over WiFi 5
• 100% wireless LAN with ubiquitous coverage
• Flexible room usage & configuration
• Enable new digital education delivery
• Help meet sustainability goals
• Deliver innovation
Wi Fi 6 Education Applications & Benefits
Huawei Wi-Fi 6 Portfolio
• The X-Gen Wi-Fi Solution, announced in 2017, offers connectivity through Gigabit Wi-Fi, Bluetooth, ZigBee and RFID
• Access point (AP7060DN) running on an 802.11ax Qualcomm chip, offering faster speeds, reduced congestion and lower energy consumption
• Offers speeds of up to 9.6Gbps, up from the current maximum of 1.7Gbps which is offered by products using the 802.11ac Wave 2 standard
• Support 400 simultaneous users, four times the number supported in high-density scenarios by 802.11ac Wave 2
• Anti-interference capabilities, using a scheduling system for different users to avoid collisions in network traffic
• Supports on-premise and cloud-based management modes for devices on the network
3x Higher Rate4x Higher CapacityWi-Fi/IoT ConvergenceCloud Managed
Huawei Promotes the Development of the Wi-Fi 6 Standard and Industry
Osama, Huawei expertChairman of the IEEE
802.11ac/ax Working Group
2014 2015 2016 2017 2018 2019 2020
Huawei released the first Wi-Fi 6 AP in the industry
Large-scale commercial use of Huawei Wi-Fi 6 APs
Huawei's Wi-Fi 6 AP became the industry's first one verified by Tolly
Built-in AP
Hongkou North Bund, Shanghai
Huawei released the first 10G Wi-Fi prototype in the industry
Huawei takes 6 seats in the 802.11 Working Groups:• Edward: Chairman of the 802.11ay Working Group• Donald Eastlake: Chairman of the 802.11ak Working Group • Yunsong Yang: Vice Chairman of the 802.11aq Working Group • Jiamin Chen: Chairman of the 802.11aj Working Group
10+ customers have selected Huawei Wi-Fi 6
Huawei has submitted 163 new proposals, accounting for 25% of all proposals and ranking No.1
Wi-Fi 6 and the Future
Huawei took the lead in the definition of a new Wi-Fi standard (Wi-Fi 6) recognizing the need for new and improved user experience.
Huawei will continue to lead the efforts for specifying future Wi-Fi standards.
Future enhancements may include optional support for 320 MHz width and 16 antennas (mainly at the access point side).
New band availability is expected to pave the way for more capabilities.
Huawei has the resources and products to positively influence future Wi-Fi directions
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